package com.BlackHourse.P1.demo1;

public class ConstDemo {
    /**
     * 测试常量输出
     * @param args
     */
    public static void main(String[] args) {
        System.out.println("hello Java");
        System.out.println(-88);

        //空常量是不能直接输出的
//        System.out.println(null);

        for (int i =0;i<10;i++){
            System.out.println(i);
        }
//        int x = 10;
        long x = 10000000000000L;

        System.out.println(x);

        float f = 3.14F;
        System.out.println(f);
    }
}
